20285200

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:161

約数の個数: 120

約数和(自身を含む): 54246528

約数和(自身を除く): 33961328

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 47, 50, 52, 65, 80, 83, 94, 100, 104, 130, 166, 188, 200, 208, 235, 260, 325, 332, 376, 400, 415, 470, 520, 611, 650, 664, 752, 830, 940, 1040, 1079, 1175, 1222, 1300, 1328, 1660, 1880, 2075, 2158, 2350, 2444, 2600, 3055, 3320, 3760, 3901, 4150, 4316, 4700, 4888, 5200, 5395, 6110, 6640, 7802, 8300, 8632, 9400, 9776, 10790, 12220, 15275, 15604, 16600, 17264, 18800, 19505, 21580, 24440, 26975, 30550, 31208, 33200, 39010, 43160, 48880, 50713, 53950, 61100, 62416, 78020, 86320, 97525, 101426, 107900, 122200, 156040, 195050, 202852, 215800, 244400, 253565, 312080, 390100, 405704, 431600, 507130, 780200, 811408, 1014260, 1267825, 1560400, 2028520, 2535650, 4057040, 5071300, 10142600, 20285200]

約数ペア:

[(1, 20285200), (2, 10142600), (4, 5071300), (5, 4057040), (8, 2535650), (10, 2028520), (13, 1560400), (16, 1267825), (20, 1014260), (25, 811408), (26, 780200), (40, 507130), (47, 431600), (50, 405704), (52, 390100), (65, 312080), (80, 253565), (83, 244400), (94, 215800), (100, 202852), (104, 195050), (130, 156040), (166, 122200), (188, 107900), (200, 101426), (208, 97525), (235, 86320), (260, 78020), (325, 62416), (332, 61100), (376, 53950), (400, 50713), (415, 48880), (470, 43160), (520, 39010), (611, 33200), (650, 31208), (664, 30550), (752, 26975), (830, 24440), (940, 21580), (1040, 19505), (1079, 18800), (1175, 17264), (1222, 16600), (1300, 15604), (1328, 15275), (1660, 12220), (1880, 10790), (2075, 9776), (2158, 9400), (2350, 8632), (2444, 8300), (2600, 7802), (3055, 6640), (3320, 6110), (3760, 5395), (3901, 5200), (4150, 4888), (4316, 4700)]